Re: How common is it for Vizsla's to have white spots?
I picked a pup with a little white on her chest purely due to her personality - had there been a pup with her personality with no white on or lots more white, that would have been fine with me too.
As far as I know white on the chest is undesirable in the show ring, as Vida said, but have never heard of a little white indicating any other problems.
In Nelly's litter of 11 pups there was one bitch with white (her) and one dog with white. Many V's we meet have a little flash of white on the chest, I really quite like it.
Mistyayre Caorunn - Nelly - 15/11/12